The Recent activity page shows you when and where you've used your Microsoft account within the last 30 days. You can expand any listed activity to see location details and find out how the account was accessed—using a web browser, phone, or another method.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page. You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.